* {
    margin: 0;
    padding: 0;
}
/* 清除浮动 */
.clearfix:before,.clearfix:after {
    content: "";
    display: table;
}
.clearfix:after {
    clear: both;
}
.clearfix {
    *zoom:1;
}

/* 广告区域 */
.advertising {
    position: fixed;
    z-index: 100;
    
    right: 50%;
    top: 50%;
    /* margin-top: -215px; */
    top: 215px;
    width: 180px;
    height: 400px;
    margin: 15px 0;
    margin-right: 630px;
    background-color: #ffffff;
    color: black;
    list-style: none;
}
.advertising li {
    height: 40px;
    line-height: 40px;
    padding-left: 20px;
}
.advertising li:hover {
   color: #35a3e8;
   /* background-color: rgba(0, 0, 0, 0.3); */
}

/* 导航头部区域 */
.header {
    width: 1200px;
    height: 100px;
    margin: 0 auto;
  
}
.header .logo {
    float: left;
  
    width: 228px;
    height: 100px;
    background-image: url("./imgs/header/logo.png");
    background-repeat: no-repeat;
    background-position: left center;
}

/* 头部中间 */
.header .zhonjian {
    float: left;
    width: 790px;
    height: 100px;
    
}
.header ul {
    float: left;
    height: 40px;
    line-height: 40px;
    width: 330px;
    list-style: none;
    margin: 30px 0;

    
    
}
.header .zhonjian ul li {
    float: left;
    
    margin: auto 0;
    padding: 0 18px;
    text-align: center;
    
    
}
.header .zhonjian ul li:hover { 
    border-bottom: #00a4ff solid 2px;
    color: #00a4ff;
}

.header .zhonjian .search {
    float: left;
    height: 40px;
    line-height: 40px;
    width: 460px;
    margin: 30px  0;
    
   
}
.header .zhonjian .search .text6 {
    float: left;
    width: 356px;
    height: 36px;
    border: #00a4ff solid 2px;
    
    
}
.header .zhonjian .search .btn {
    float: left;
    width: 50px;
    height: 40px;
    background-color: #00a4ff ;
    background-image: url("./imgs/header/fa-search.png");
    background-repeat: no-repeat;
    background-position: center center;
    border: none;
}
.header .zhonjian .search .btn:hover {
    background-color: orange;
}

/* 头部用户信息 */
.header .user {
    float: right;
    line-height: 40px;
    height: 40px;

    margin: 30px 0;
    text-align: center;
}
.header .user span {
    float: left;
    text-align: center;
    
}
.header .user .userimg img{
    margin: 0;
    padding: 0;
    float: left;
    border-radius: 50%;
    width: 40px;
    height: 40px;
}

/* banner 广告区域 */
.banner {
    height: 420px;
    background-color: #1c036c;
}
.banner .ban_text{
    width: 1200px;
    height: 420px;
    margin: 0 auto;
    background-image: url("./imgs/header/banner2.png");
    
}
.banner .ban_text .ban_left {
    float: left;
    width: 190px;
    height: 420px;
    background-color: rgba(0, 0, 0, 0.3);
    
}
.banner .ban_text .ban_left ul{
    list-style: none;
    padding-top: 10px;
    color: white;
    padding-bottom: 10px;
}
.banner .ban_text .ban_left ul li{
    height: 20px;
    width: 150px;
    line-height: 20px;
    padding: 10px 20px;
    

}
.banner .ban_text .ban_left ul li:hover {
    background-color: orange;
}
.banner .ban_text .ban_left ul li .span_left{
    float: left;
}
.banner .ban_text .ban_left ul li .span_right{
    float: right;
}




.banner .ban_text .ban_right {
    float: right;
    width: 230px;
    height: 300px;

    background-color: white;
    margin: 60px 0;
    text-align: center;
}
.banner .ban_text .ban_right .biaoti {
    display: block;
    height: 60px;
    line-height: 60px;
    background-color: #9bceea;
    color: white;
    font-weight: 700;
    font-size: 20px;

}
.banner .ban_text .ban_right ul {
    list-style: none;
    text-align: left;
   
    
}

.banner .ban_text .ban_right ul li span{
    display: block;
    
}
.banner .ban_text .ban_right ul li {
    margin:  0 20px;
    padding: 15px 0;
    border-bottom: gray solid 1px;
    
}
.banner .ban_text .ban_right ul li:hover {
    background-color: orange;
    color: white;
}
.banner .ban_text .ban_right ul li .span_top{
    font-size: 15px;
    color: black;
    font-weight: 700;
    
}
.banner .ban_text .ban_right ul li .span_bottom{
    font-size: 10px;
    color: gray;
    font-weight: 400;
    
}
.banner .ban_text .ban_right .btn_kc {
    width: 200px;
    height: 40px;
    margin: 0 auto;
    border: #00a4ff solid 2px;
    background-color: white;
    color: #00a4ff;
    font-weight: 700;
}
.banner .ban_text .ban_right .btn_kc:hover {
    background-color: orange;
    color: white;
}


/* content 内容区域 */
.content {
   
    background-color: #f3f5f7;
}

.content .con_header{
    width: 1200px;
    height: 60px;
    margin: 10px auto;
    background-color: #ffffff;
    box-shadow: 0 10px 10px -4px rgba(0, 0, 0, .3);
}
.content .con_header ul{
    list-style: none;
    text-align: center;
}
a {
    text-decoration: none;
    color: black;
}
.content .con_header ul li {
    float: left;
}
.content .con_header ul li a{
    float: left;
    width: 130px;
    height: 60px;
    line-height: 60px;
}
.content .con_header ul li a:hover {
    background-color: orange;
    color: #f3f5f7;
}
.content .con_header ul .con_header_first a{ 
    color: #42b2ff;
   
}
.content .con_header ul .con_header_last {
    float: right;
    width: 130px;
    height: 60px;
    color: #42b2ff;
    line-height: 60px;
}
.content .con_header ul .con_header_last a {
    float: right;
    width: 130px;
    height: 60px;
    color: #42b2ff;
    line-height: 60px;
}

/* 精品推荐模块 */
/* 130 60 */
.content .con_top{
    width: 1200px;
    height: 40px;
    margin: 40px auto;
    margin-bottom: 0;
    
    
}
.con_top_first {
    float: left;
    width: 130px;
    height: 40px;
    height: 40px;
    font-size: 20px;

}
.con_top_last {
    float: right;
    margin-right: 32px;
    height: 40px;
    height: 40px;
    font-size: 10px;
    color: gray;
    

}
.content .con_all{
    width: 1200px;
    margin: 0 auto;
      
}
.content .con_all ul {
    list-style: none;
}
.content .con_all ul li {
    position: relative;
    float: left;
    width: 228px;
    height: 270px;
    margin-right: 12px;
    /* margin: 0 6px; */
    margin-bottom: 15px;
    background-image: url("./imgs/connect/图层\ 133.png");

}
.content .con_all ul li .new {
    position: absolute;
    top: 5px;
    right: -5px;
}
.text {
    margin-top: 170px;
    margin-left: 30px;
    padding-right: 30px;
    height: 20px;
    line-height: 20px;
    font-size: 15px;
}
.text3 {
    margin-top: 40px;
    padding-left: 30px;
    padding-right: 30px;
    height: 30px;
    
}
.orenge {
    height: 30px;
    line-height: 30px;
    color: orange;
    float: left;
}
 .point {
  
    float: left;
    width: 1px;
    height: 1px;
    margin: 0 10px;
    margin-top: 12px;
    border: 2px solid rgba(0, 0, 0, 0.3);
    border-radius: 50%;
    
    
}

.pinlun {
    height: 30px;
    line-height: 30px;
    margin-top: 8px;
    margin: auto 10px;
    float: left;
    font-size: 10px;
    color: gray;
}

.content .con_all ul li:hover {
    box-shadow: 10px 10px 10px -4px rgba(0, 0, 0, .3);
}


/* 底部区域 */
/* content 内容区域 */
.footer {
    height: 420px;
    background-color: #f3f5f7;
}
.footer .footer_text{
    width: 1200px;
    height: 420px;
    margin: 0 auto;
    background-color: #ffffff;
}

.footer .footer_text .footer_text_left{
   float: left;
   width: 480px;
  

}
.footer .footer_text .footer_text_left .footer_text_left_img{
   width: 195px;
   height: 42px;

   margin: 20px 20px;

 }
 .footer .footer_text .footer_text_left .div{
    width: 300px;
    color: gray;
    font-size: 5px;
    margin: 20px 20px;
 
  }

  .footer .footer_text .footer_text_left .btn{
    width: 180px;
    height: 50px;
    border: #00a4ff solid 3px;
    line-height: 50px;
    margin: 0 20px;
    color: #00a4ff;
    font-size: 20px;
    text-align: center;
 
  }
  .footer .footer_text .footer_text_left .btn:hover {
      color: #f3f5f7;
      background-color: orange;
  }
  .footer .footer_text .footer_text_right {
      float: left;
      
  }
  .footer .footer_text .footer_text_right ul {
      list-style: none;
  }
  .footer .footer_text .footer_text_right ul .li1 {
      float: left;
      margin: 20px 0;
      margin-left: 130px;
  }
  .footer .footer_text .footer_text_right ul .li1 .li_first {
      font-size: 20px;
      
  }
  .footer .footer_text .footer_text_right ul .li1 ul li {
      margin-top: 10px;
  }

  /* 编程入门 */

.content .box_rml_header {
    width: 1200px;
    height: 40px;
    margin: 40px auto;
    margin-bottom: 0;
    /* background-color: pink; */
}
.content .box_rml_header div {
    float: left;
}
.content .box_rml_header div ul{
    list-style: none;
    width: 400px;
    height: 40px;
    margin:  0  auto;
    margin-left: 300px;
}
.content .box_rml_header div ul li {
    float: left;
    width: 100px;
    text-align: center;
    height: 40px;
    line-height: 40px;


}



.content .box_rm1 {
   
    width: 1200px;
    height: 400px;
    margin: 0 auto ;
    
    /* background-color: red; */
}
.content .box_rm1 .box_rm1_left {
    float: left;
}



.content .box_rm1 .box_rm1_right {
    float: left;
    margin-left: 10px;
 
}

.content .box_rm1 .box_rm1_right ul  {
    list-style: none;
}

.content .box_rm1 .box_rm1_right ul li {

    float: left;
    margin-top: 10px;
    width: 228px;
    height: 270px;
    margin-right: 12px;
    /* margin: 0 6px; */
    margin-bottom: 15px;
    background-image: url("./imgs/编程入门模块/图层\ 143.png");
}

.content .box_rm1 .box_rm1_right ul li:hover {
    box-shadow: 10px 10px 10px -4px rgba(0, 0, 0, .3);
}

  